<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>

<head>
    <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
    <title>百度语音测试</title>
    <script type="text/javascript">
        function doTTS() {
            var ttsDiv = document.getElementById('bdtts_div_id');
            var ttsAudio = document.getElementById('tts_autio_id');
            var ttsText = document.getElementById('ttsText').value;

            // 这样为什么替换不了播放内容
            /*var ssrcc = 'http://tts.baidu.com/text2audio?lan=zh&ie=UTF-8&spd=10&text='+ttsText;
            document.getElementById('tts_source_id').src=ssrcc;*/

            // 这样就可实现播放内容的替换了
            ttsDiv.removeChild(ttsAudio);
            var au1 = '<audio id="tts_autio_id" autoplay="autoplay">';
            var sss = '<source id="tts_source_id" src="http://tts.baidu.com/text2audio?lan=zh&ie=UTF-8&spd=9&text=' + ttsText + '" type="audio/mpeg">';
            var eee = '<embed id="tts_embed_id" height="0" width="0" src="">';
            var au2 = '</audio>';
            ttsDiv.innerHTML = au1 + sss + eee + au2;

            ttsAudio = document.getElementById('tts_autio_id');

            ttsAudio.play();
        }
    </script>
</head>

<body>
    <div>
        <input type="text" id="ttsText">
        <input type="button" id="tts_btn" onclick="doTTS()" value="播放">
    </div>
    <div id="bdtts_div_id">
        <audio id="tts_autio_id" autoplay="autoplay">
				<source id="tts_source_id" src="http://tts.baidu.com/text2audio?lan=zh&ie=UTF-8&spd=9&text=播报内容" type="audio/mpeg">
				<embed id="tts_embed_id" height="0" width="0" src="">
			</audio>
    </div>
</body>

</html>